Android Question [SOLVED] UPDATE SQL Query to Web Service: can't edit multiple fields

<?php
$databasehost = "localhost";
$databasename = "myDB";
$databaseusername ="myUser";
$databasepassword = "123456";

$con = mysql_connect($databasehost,$databaseusername,$databasepassword) or die(mysql_error());
mysql_select_db($databasename) or die(mysql_error());

mysql_query("SET CHARACTER SET utf8"); // This is the line I added

$queryin = file_get_contents("php://input");
//$query = $_GET["query"];  forget this one, was used just for tests..No need to be here

$sth = mysql_query($queryin);

if (mysql_errno()) {
    header("HTTP/1.1 500 Internal Server Error");
    echo $query.'\n';
    echo mysql_error();
}
else
{
    $rows = array();
    while($r = mysql_fetch_assoc($sth)) {
        $rows[] = $r;
    }
    print json_encode($rows);
}
?>